TW202207015A

TW202207015A - Dual-mode display with light sensing function

Info

Publication number: TW202207015A
Application number: TW109144897A
Authority: TW
Inventors: 周正三; 范成至
Original assignee: 神盾股份有限公司
Priority date: 2020-08-03
Filing date: 2020-12-18
Publication date: 2022-02-16
Also published as: WO2022027901A1; CN112510075A; CN213424993U; TWM610904U

Abstract

A dual-mode display device with a light sensing function includes: a substrate; a control unit; and photoelectric conversion units disposed on the substrate and electrically coupled to the control unit. In a display mode, the control unit controls the photoelectric conversion units to enter a forward bias light emitting mode; and in a sensing mode, the control unit controls at least one of the photoelectric conversion units to enter a reverse bias light sensing mode.

Description

具有光感測功能的雙模顯示裝置Dual-mode display device with light sensing function

本發明是有關於一種具有光感測功能的雙模顯示裝置，且特別是有關於一種利用雙模式光電轉換單元來兼顧顯示及光感測功能的雙模顯示裝置。The present invention relates to a dual-mode display device with a light sensing function, and more particularly, to a dual-mode display device that utilizes a dual-mode photoelectric conversion unit for both display and light sensing functions.

現今的移動電子裝置(例如手機、平板電腦、筆記本電腦等)最主要的資訊與人機介面就是顯示裝置，因此許多感測器的發展都必須要迎合顯示裝置的發展而開發新技術，例如手機的全螢幕發展就限縮或改變了很多感測器的空間，包括屏下指紋或屏下相機等等，將微小化光學成像裝置設置於屏幕下方(可稱為屏下)，透過屏幕部分透光(特別是有機發光二極體(Organic Light Emitting Diode，OLED)屏幕)，可以擷取屏幕上方的物體的圖像，像是指紋圖像或是照片。The most important information and human-machine interface of today's mobile electronic devices (such as mobile phones, tablet computers, notebook computers, etc.) is the display device. Therefore, the development of many sensors must meet the development of display devices and develop new technologies, such as mobile phones. The development of the full screen has limited or changed the space of many sensors, including the fingerprint under the screen or the camera under the screen, etc. The miniaturized optical imaging device is placed under the screen (can be called under the screen), and the part of the screen can be seen through the screen. Light (especially Organic Light Emitting Diode (OLED) screens) can capture images of objects above the screen, such as fingerprint images or photographs.

然而，屏幕下影像感測技術有一定的困難度，因為代表圖像的光線需要穿透顯示面板，造成信號處理上的困難(因為影像訊號會與面板透光圖案結合在一起)，都需要複雜的影像處理方法解決，同時，不同的顯示面板透光比率與透光圖案也不同，常常都需要針對其提出解決方法，更重要的是，隨著顯示面板發展趨勢的增長，最終有可能發展出不透光的技術，這時，屏下影像感測將英雄無用武之地。為此，本發明為了解決上述問題，將提出如何設計出一種屏內光學感測裝置，實為本揭露內容所欲解決的問題。However, the image sensing technology under the screen has certain difficulties, because the light representing the image needs to penetrate the display panel, causing difficulties in signal processing (because the image signal will be combined with the panel light transmission pattern), all of which require complex At the same time, the light transmittance ratio and light transmittance pattern of different display panels are also different, so it is often necessary to propose solutions for them. More importantly, with the growth of the development trend of display panels, it is possible to eventually develop Opaque technology, at this time, the image sensing under the screen will be useless for heroes. Therefore, in order to solve the above problems, the present invention proposes how to design an in-screen optical sensing device, which is the problem to be solved by the present disclosure.

因此，本發明的一個目的是提供一種利用雙模式光電轉換單元來兼顧顯示、光感測及防偽功能的雙模顯示裝置，可以應用於OLED顯示器、微型發光二極體顯示器、無機發光二極體顯示器或其他具有獨立發光單元的顯示器。Therefore, an object of the present invention is to provide a dual-mode display device that utilizes a dual-mode photoelectric conversion unit to take into account display, light sensing and anti-counterfeiting functions, which can be applied to OLED displays, miniature light-emitting diode displays, and inorganic light-emitting diodes. Displays or other displays with separate lighting units.

為達上述目的，本發明提供一種雙模顯示裝置，至少包含：一基板；一控制單元；及多個光電轉換單元，設置於基板上，並電耦合至控制單元。在一顯示模式下，控制單元控制所述多個光電轉換單元進入一發光模式；以及在一感測模式下，控制單元控制所述多個光電轉換單元的至少一個進入一光感測模式。In order to achieve the above object, the present invention provides a dual-mode display device, which at least includes: a substrate; a control unit; and a plurality of photoelectric conversion units disposed on the substrate and electrically coupled to the control unit. In a display mode, the control unit controls the plurality of photoelectric conversion units to enter a light-emitting mode; and in a sensing mode, the control unit controls at least one of the photoelectric conversion units to enter a light-sensing mode.

本發明亦提供一種雙模顯示裝置，至少包含：一基板；一控制單元；以及多個光電轉換單元，設置於基板上，並電耦合至控制單元，其中控制單元控制並調整此些光電轉換單元的三原色光電二極體的三原色的發光比例，另外在感測時控制具有不同的三原色能階的此些三原色光電二極體接收不同光譜的光，以執行光譜分離的功能。The present invention also provides a dual-mode display device, at least comprising: a substrate; a control unit; and a plurality of photoelectric conversion units disposed on the substrate and electrically coupled to the control unit, wherein the control unit controls and adjusts the photoelectric conversion units The luminous proportions of the three primary colors of the photodiodes of the three primary colors are controlled, and the photodiodes of the three primary colors with different energy levels of the three primary colors are controlled to receive light of different spectra during sensing, so as to perform the function of spectral separation.

本發明更提供一種雙模顯示裝置，至少包含：一基板；一控制單元；以及多個光電轉換單元，設置於基板上，並電耦合至控制單元，其中多個光電轉換單元至少具有一第一能階與一第二能階，第二能階高於第一能階，控制單元控制具有第一能階的此些光電轉換單元接收對應的第一光譜而產生一第一電信號，控制單元控制具有第二能階的此些光電轉換單元接收對應的第二光譜而產生一第二電信號，藉由執行第一電信號及第二電信號的運算以達到光譜分離的功能。The present invention further provides a dual-mode display device, at least comprising: a substrate; a control unit; and a plurality of photoelectric conversion units disposed on the substrate and electrically coupled to the control unit, wherein the plurality of photoelectric conversion units at least have a first energy level and a second energy level, the second energy level is higher than the first energy level, the control unit controls the photoelectric conversion units with the first energy level to receive the corresponding first spectrum to generate a first electrical signal, the control unit The photoelectric conversion units with the second energy level are controlled to receive the corresponding second spectrum to generate a second electrical signal, and the function of spectral separation is achieved by performing operations on the first electrical signal and the second electrical signal.

藉由上述的實施例，可以利用發光模式及光感測模式的光電轉換單元來進行顯示及光感測，其中發光模式的光電轉換單元除了可提供顯示用光線以外，也可以提供感測用光線。由於不需要重新設計製造顯示器，僅需更改電路驅動方式，所以不需要耗費大量的成本，即可達成屏內光學感測器應有的功能。再者，利用RGB二極體的特性，可以執行光譜分離，提供防偽用的感測數據，而不需另外設置彩色濾光元件，可以有效節省成本。With the above-mentioned embodiments, the photoelectric conversion unit in the light-emitting mode and the light-sensing mode can be used for display and light sensing, wherein the photoelectric conversion unit in the light-emitting mode can not only provide light for display, but also light for sensing. . Since the display does not need to be redesigned and manufactured, and only the circuit driving method needs to be changed, the function of the in-screen optical sensor can be achieved without spending a lot of cost. Furthermore, by utilizing the characteristics of the RGB diodes, spectral separation can be performed to provide sensing data for anti-counterfeiting, without the need for additional color filter elements, which can effectively save costs.

為讓本發明的上述內容能更明顯易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。In order to make the above-mentioned content of the present invention more obvious and easy to understand, the preferred embodiments are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings.

本揭露內容的精神在於使用譬如任何利用發光二極體(包含有機及無機材料，例如OLED、微型發光二極體(Micro LED)等等來提供光感測及顯示功能。為了簡化之後的說明，將以習知的OLED為主，使其在兩種模式下運作，當OLED在順偏壓發光模式(簡稱發光模式或稱電光轉換模式)運作時，OLED可以當作顯示器使用，當OLED在逆偏壓光感測模式(簡稱光感測模式、收光模式或光電轉換模式)運作時，部分或全部OLED可以當作光電二極體使用，用來作為光感測器，設計上可以是單點、多點、一維及二維，二維(2D)光感測器便可以感測物體，由於是利用兩種模式運作，故稱為雙模顯示裝置。於一個應用實施例中，例如作指紋感測時，可以在一感測區內讓部分的OLED像素(也可稱發光單元)當作照明用，讓部分的OLED像素當作收光感測器用，當然這只是一種實施例，可以利用控制單元隨著應用的場景設定在該感測區內的發光與感測比例(譬如昏暗場景的發光與感測比例為5：3；室內光源場景的發光與感測比例為5：4；或者太陽光源場景的發光與感測比例為1：4，當然這比例並不受限)，應用的場景可以利用控制單元依據環境光感測器獲得的相關資訊來判斷。再者，可以利用控制單元依據應用的場景控制此些光電轉換單元的三原色光電二極體，調整該三原色(RGB)的發光比例，另外，在感測時，可以藉由三原色能階(Energy Gap)的不同，接收不同光譜的光，執行光譜分離的功能，便於做光譜資訊的處理，例如假手指判斷。需注意的是，本揭露內容所提的"至少一個"是包含一個或多個的情況，或者部分或全部的情況。The spirit of the present disclosure is to use, for example, any light emitting diode (including organic and inorganic materials, such as OLED, Micro LED), etc., to provide light sensing and display functions. To simplify the following description, The conventional OLED will be mainly used to make it operate in two modes. When the OLED operates in the forward bias light-emitting mode (referred to as the light-emitting mode or electro-optical conversion mode), the OLED can be used as a display. When the bias light sensing mode (referred to as the light sensing mode, the light receiving mode or the photoelectric conversion mode) operates, some or all of the OLEDs can be used as photodiodes, which can be used as light sensors. Point, multi-point, one-dimensional and two-dimensional, two-dimensional (2D) light sensor can sense objects, because it operates in two modes, it is called a dual-mode display device. In an application embodiment, for example For fingerprint sensing, some OLED pixels (also called light-emitting units) can be used as lighting in a sensing area, and some OLED pixels can be used as light-receiving sensors. Of course, this is just an example. The control unit can be used to set the light-emitting and sensing ratio in the sensing area according to the application scene (for example, the light-emitting and sensing ratio for dark scenes is 5:3; the lighting-sensing ratio for indoor light source scenes is 5:4 ; or the ratio of light emission and sensing of the sun light source scene is 1:4, of course, this ratio is not limited), the application scene can be judged by the control unit according to the relevant information obtained by the ambient light sensor. Furthermore, you can use the The control unit controls the photodiodes of the three primary colors of the photoelectric conversion units according to the application scene, and adjusts the light emission ratio of the three primary colors (RGB). Lights of different spectrums perform the function of spectral separation, which is convenient for the processing of spectral information, such as false finger judgment. It should be noted that the "at least one" mentioned in this disclosure includes one or more cases, or part or all situations.

本揭露內容的實施例將舉指紋感測作為說明，但不是要將其限定於此，任何藉由本揭露內容衍伸的光感測功能，不管是單點或一維(1D)或二維(2D)影像，都是本揭露內容的範圍。圖1與圖2顯示依據本發明較佳實施例的雙模顯示裝置在執行顯示功能及光感測功能的局部剖面示意圖。圖3顯示雙模顯示裝置的功能方塊圖。如圖1至圖3所示，雙模顯示裝置100至少包含一基板10(例如玻璃或高分子柔性基板)、多個光電轉換單元20以及一控制單元30。值得注意的是，雖然雙模顯示裝置100是以設置有感測器的OLED顯示器作為例子來說明，但是並未將本發明限制於此。於另一例子中，雙模顯示裝置100也可以感測手指的血管圖像、血氧濃度圖像等生物特徵或當作點狀、線狀、面狀感測裝置使用。於又另一例子中，雙模顯示裝置100是設置有光學感測器的微型發光二極體顯示器或其他利用類似發光二極體當作顯示光源的顯示器中。The embodiments of the present disclosure will take fingerprint sensing as an illustration, but it is not intended to be limited to this. Any light sensing function derived from the present disclosure, whether it is single-point or one-dimensional (1D) or two-dimensional ( 2D) images are all within the scope of this disclosure. FIG. 1 and FIG. 2 are partial cross-sectional schematic views of a dual-mode display device performing a display function and a light sensing function according to a preferred embodiment of the present invention. FIG. 3 shows a functional block diagram of a dual-mode display device. As shown in FIGS. 1 to 3 , the dual-mode display device 100 at least includes a substrate 10 (eg, a glass or polymer flexible substrate), a plurality of photoelectric conversion units 20 and a control unit 30 . It is worth noting that, although the dual-mode display device 100 is described with an OLED display provided with a sensor as an example, the present invention is not limited thereto. In another example, the dual-mode display device 100 can also sense biometric features such as blood vessel images and blood oxygen concentration images of fingers, or be used as a point-like, line-like, or plane-like sensing device. In yet another example, the dual-mode display device 100 is a miniature light-emitting diode display provided with an optical sensor or other displays using similar light-emitting diodes as a display light source.

於一例子中，基板10譬如是一介電基板。於基板10上可以形成一電晶體層25(電晶體層25當作光電轉換單元20的一部分，也就是光電轉換單元20至少包含電晶體層25)，譬如是薄膜電晶體層。電晶體層25具有至少一個或多個當作開關用的電晶體25A、25B與25C，當然也包括導體連接導線(未顯示)。譬如是有機發光二極體或微型發光二極體等等的多個光電轉換單元20設置於基板10上。光電轉換單元20包含多個像素24，各像素24包含至少一個三原色光電二極體(紅光光電二極體21、綠光光電二極體22及藍光光電二極體23)及控制上述光電二極體的至少一電晶體25A、25B與25C，控制單元30通過當作開關用的該至少一電晶體25A、25B、25C，而電耦合至紅光光電二極體21、綠光光電二極體22及藍光光電二極體23。值得注意的是，可以是單一光電二極體連接至單一電晶體，也可以單一電晶體連接至多個光電二極體，或者是多個電晶體連接至單一光電二極體，於此不特別設限。因此，控制單元30電耦合至此些光電轉換單元20。譬如，控制單元30輸出控制信號給電晶體25A、25B與25C，可以控制三原色光電二極體的運作。控制單元30的設置位置不作特別限制。當然各像素與各電晶體間的配置及數量，在此僅以基本操作說明之，並不是要加以設限，熟悉此技藝者當瞭解且可以根據應用加以變化之，譬如增加逆偏壓的設計，就可能使各像素控制電晶體的數量增加。In one example, the substrate 10 is, for example, a dielectric substrate. A transistor layer 25 may be formed on the substrate 10 (the transistor layer 25 is used as a part of the photoelectric conversion unit 20 , that is, the photoelectric conversion unit 20 includes at least the transistor layer 25 ), such as a thin film transistor layer. The transistor layer 25 has at least one or more transistors 25A, 25B and 25C for switching, and of course also includes conductor connecting wires (not shown). A plurality of photoelectric conversion units 20 such as organic light emitting diodes or micro light emitting diodes are disposed on the substrate 10 . The photoelectric conversion unit 20 includes a plurality of pixels 24, and each pixel 24 includes at least one photodiode of three primary colors (a red photodiode 21, a green photodiode 22, and a blue photodiode 23) and controls the above photodiode. At least one transistor 25A, 25B and 25C of the polar body, the control unit 30 is electrically coupled to the red photodiode 21 and the green photodiode through the at least one transistor 25A, 25B, 25C used as a switch body 22 and blue photodiode 23 . It should be noted that a single photodiode may be connected to a single transistor, a single transistor may be connected to a plurality of photodiodes, or a plurality of transistors may be connected to a single photodiode, which is not particularly set here. limit. Therefore, the control unit 30 is electrically coupled to such photoelectric conversion units 20 . For example, the control unit 30 outputs control signals to the transistors 25A, 25B and 25C, which can control the operation of the three primary color photodiodes. The installation position of the control unit 30 is not particularly limited. Of course, the configuration and quantity between each pixel and each transistor are described here only with basic operations, not intended to be limited. Those who are familiar with the art should understand and can change them according to the application, such as increasing the design of reverse bias voltage. , it is possible to increase the number of control transistors for each pixel.

於顯示模式下，控制單元30控制此些光電轉換單元20進入發光模式，以執行電信號至光信號轉換而提供譬如顯示用光線L1。於此情況下，可以提供顯示的功能。In the display mode, the control unit 30 controls the photoelectric conversion units 20 to enter the light-emitting mode, so as to perform the conversion of electrical signals to optical signals to provide, for example, light L1 for display. In this case, the displayed function can be provided.

於感測模式下，控制單元30控制此些光電轉換單元20的至少一個(包含一個或多個)進入光感測模式，進入光感測模式可以接收來自一物體F的光線L3，並執行光信號至電信號轉換以獲得一感測信號S1。因此，一個或多個光電轉換單元20可受控於控制單元30而選擇性地在發光模式與光感測模式之間操作，或選擇性地操作於發光模式或光感測模式。於另一例中，當一個或多個光電轉換單元20受控於控制單元30操作於光感測模式時，其餘的光電轉換單元20可受控於控制單元30選擇性的操作於發光模式或不發光模式。當OLED顯示器為小面積的顯示器時，可以控制全部的光電轉換單元20進入光感測模式。當OLED顯示器為大面積的顯示器(闢如具有手機屏幕的尺寸)時，可以控制一部分的光電轉換單元20進入光感測模式，但是也可以控制全部的光電轉換單元20進入光感測模式，以執行多部位的光感測功能，譬如是同時感測兩個、三個、四個或五個物體(手指)的指紋等等。因此，控制單元30可以控制光電轉換單元20操作於發光模式及/或光感測模式，這樣的控制動作可以包含：(a)單純顯示場合；(b)全屏感測場合；(c)沒有顯示加上部分感測(譬如一般黑屏情況欲解鎖)；以及(d)部分顯示加上部分感測(譬如操作應用程式而需要指紋認證時)。此外，控制單元30可以控制此些光電轉換單元20的三原色光電二極體執行光譜分離的功能，以利防偽程序的進行，細節將說明於後。In the sensing mode, the control unit 30 controls at least one (including one or more) of the photoelectric conversion units 20 to enter the photo-sensing mode, which can receive the light L3 from an object F and execute the photo-sensing mode. The signal is converted into an electrical signal to obtain a sensing signal S1. Therefore, one or more photoelectric conversion units 20 can be controlled by the control unit 30 to selectively operate between the light-emitting mode and the light-sensing mode, or selectively operate in the light-emitting mode or the light-sensing mode. In another example, when one or more photoelectric conversion units 20 are controlled by the control unit 30 to operate in the light sensing mode, the remaining photoelectric conversion units 20 can be controlled by the control unit 30 to selectively operate in the light-emitting mode or not. Glow mode. When the OLED display is a small-area display, all the photoelectric conversion units 20 can be controlled to enter the light sensing mode. When the OLED display is a large-area display (such as having the size of a mobile phone screen), a part of the photoelectric conversion units 20 can be controlled to enter the light sensing mode, but all the photoelectric conversion units 20 can also be controlled to enter the light sensing mode. Perform multi-part light sensing functions, such as sensing the fingerprints of two, three, four or five objects (fingers) at the same time. Therefore, the control unit 30 can control the photoelectric conversion unit 20 to operate in the light-emitting mode and/or the light-sensing mode, and such control actions may include: (a) a simple display situation; (b) a full-screen sensing situation; (c) no display Add part of the sensing (for example, when the screen is black and want to unlock); and (d) part of the display plus part of the sensing (for example, when operating an application and requires fingerprint authentication). In addition, the control unit 30 can control the photodiodes of the three primary colors of the photoelectric conversion units 20 to perform the function of spectral separation, so as to facilitate the anti-counterfeiting procedure, and the details will be described later.

藉由上述的發光模式與光感測模式的控制，可以利用此些光電轉換單元20在不同時間點進行電光(發光)及光電(感測)轉換，而獲得顯示、照明及光感測的功能，或者不同位置的光電轉換單元20 (藉由幾何規劃，光電轉換單元20可以執行部分發光及部分光感測)進行電光(發光)及光電(感測)轉換，而獲得顯示、照明及光感測的功能。因此，不需犧牲顯示器的解析度，也不需重新配置顯示器的發光單元，更不用在顯示器的發光單元之間***光感測單元，而能讓顯示器同時具有顯示及光感測的功能，並且可以控制此些光電轉換單元的三原色光電二極體執行光譜分離的功能，這些都是本揭露內容最重要的精神。Through the control of the above-mentioned light-emitting mode and light-sensing mode, the photoelectric conversion units 20 can be used to perform electro-optical (light-emitting) and photoelectric (sensing) conversion at different time points, so as to obtain the functions of display, lighting and light-sensing , or the photoelectric conversion units 20 at different positions (by geometric planning, the photoelectric conversion units 20 can perform partial light emission and partial light sensing) perform electro-optical (light-emitting) and photoelectric (sensing) conversions to obtain display, illumination and light-sensing test function. Therefore, without sacrificing the resolution of the display, without reconfiguring the light-emitting units of the display, and without inserting a light-sensing unit between the light-emitting units of the display, the display can have both display and light-sensing functions, and It is possible to control the three primary color photodiodes of these photoelectric conversion units to perform the function of spectral separation, which is the most important spirit of the present disclosure.

此外，雙模顯示裝置100可以更包含一顯示面板保護層40，設置於此些光電轉換單元20的上方，並依據顯示用光線L1顯示信息。於一例子中，顯示面板保護層40包含玻璃基板或者是其他透光材料，例如保護貼。In addition, the dual-mode display device 100 may further include a display panel protective layer 40 disposed above the photoelectric conversion units 20 and displaying information according to the display light L1. In one example, the display panel protective layer 40 includes a glass substrate or other light-transmitting materials, such as a protective sticker.

再者，雙模顯示裝置100可以更包含一觸控感測層50，電耦合至控制單元30，設置於顯示面板保護層40上(當然隨著技術的發展，此處所顯示的觸控感測層50與顯示面板保護層40不限定其製造時序或前後關係，例如有些屏內觸控(in-cell touch)技術是整合了觸控技術，而將顯示面板保護層設置於最外部，於此情況下，觸控感測層50設置於此些光電轉換單元20的上方)，觸控感測層50感測物體F的觸控信息而產生一觸控信號S2。因此，控制單元30可以依據觸控信號S2對應觸控的位置選擇一個感興趣的區域(Region Of Interest, ROI)，控制位於ROI內的此些光電轉換單元20的至少一個進入光感測模式，以獲得感測信號S1。Furthermore, the dual-mode display device 100 may further include a touch sensing layer 50 electrically coupled to the control unit 30 and disposed on the display panel protective layer 40 (of course, with the development of technology, the touch sensing layer shown here is The layer 50 and the display panel protective layer 40 are not limited in their manufacturing sequence or relationship. For example, some in-cell touch technologies integrate the touch technology, and the display panel protective layer is arranged at the outermost part. In this case, the touch sensing layer 50 is disposed above the photoelectric conversion units 20 ), and the touch sensing layer 50 senses the touch information of the object F to generate a touch signal S2 . Therefore, the control unit 30 can select a region of interest (ROI) according to the touch position corresponding to the touch signal S2, and control at least one of the photoelectric conversion units 20 located in the ROI to enter the light sensing mode, to obtain the sensing signal S1.

圖4A與圖4B顯示像素的兩種狀態。如圖4A與圖3所示，控制單元30更於控制此些光電轉換單元20的一第一群組(譬如圖4A中當作發光單元EM用的像素24所組成的群組)進入發光模式而提供感測用光線L2，並且控制此些光電轉換單元20的一第二群組(譬如圖4A中當作收光單元RC用的像素24所組成的群組)進入光感測模式，以利用感測用光線L2來獲得感測信號S1。因此，光電轉換單元20的一部分提供感測用光線L2，另一部分提供光感測用，於此情況下，可以控制兩個群組的像素24同時進行發光及收光功能，此些光電轉換單元20的第一群組及第二群組可以交錯排列，當然此處的交錯排列僅為說明應用的一種實施例，任何的發光像素與感測像素的幾何排列，都可以藉由控制單元控制，都屬於本揭露內容涵蓋之範圍。值得注意的是，感測用光線也可以由其他的光源提供，譬如是另外設置感測用光源，或者使用環境光等，而不限制於一定要由光電轉換單元20提供。4A and 4B show two states of the pixel. As shown in FIG. 4A and FIG. 3 , the control unit 30 further controls a first group of the photoelectric conversion units 20 (such as the group formed by the pixels 24 used as the light-emitting unit EM in FIG. 4A ) to enter the light-emitting mode The light L2 for sensing is provided, and a second group of the photoelectric conversion units 20 (for example, the group formed by the pixels 24 used as the light receiving unit RC in FIG. 4A ) is controlled to enter the light sensing mode, so as to The sensing signal S1 is obtained by using the light L2 for sensing. Therefore, a part of the photoelectric conversion unit 20 provides light L2 for sensing, and the other part provides light for sensing. In this case, two groups of pixels 24 can be controlled to perform light-emitting and light-receiving functions at the same time. These photoelectric conversion units The first group and the second group of 20 can be staggered. Of course, the staggered arrangement here is only an example of application. Any geometric arrangement of light-emitting pixels and sensing pixels can be controlled by the control unit. All fall within the scope of this disclosure. It is worth noting that the light for sensing can also be provided by other light sources, for example, another light source for sensing is provided, or ambient light is used, etc., and is not limited to be provided by the photoelectric conversion unit 20 .

或者，如圖3與圖4A所示，控制單元30可以控制此些光電轉換單元20的第一群組及第二群組分別進入發光模式及光感測模式，以利用第一群組進行打光及利用第二群組進行光感測的功能。此外，如圖3與圖4B所示，控制單元30可以控制此些光電轉換單元20的第一群組及第二群組分別進入光感測模式及發光模式，以利用第二群組進行打光及利用第一群組進行光感測的功能。藉此，可以將第一群組及第二群組所感測到的數據結合起來，而獲得完整的數據。Alternatively, as shown in FIG. 3 and FIG. 4A , the control unit 30 may control the first group and the second group of the photoelectric conversion units 20 to enter the light-emitting mode and the light-sensing mode, respectively, so as to use the first group for printing Light and the function of light sensing using the second group. In addition, as shown in FIG. 3 and FIG. 4B , the control unit 30 can control the first group and the second group of the photoelectric conversion units 20 to enter the light-sensing mode and the light-emitting mode, respectively, so as to use the second group for printing Light and the function of light sensing using the first group. Thereby, the data sensed by the first group and the second group can be combined to obtain complete data.

當然，如圖1至圖3所示，光電轉換單元20的至少一個可以提供感測用光線L2後，再進行收光功能(例如近接式感測器(proximity sensor))。於此情況下，控制單元30更控制此些光電轉換單元20進入發光模式而提供感測用光線L2，且控制單元30依據觸控信號S2依序控制此些光電轉換單元20的至少一個進入發光模式及光感測模式，以利用感測用光線L2來獲得感測信號S1。Of course, as shown in FIG. 1 to FIG. 3 , at least one of the photoelectric conversion units 20 may provide the light L2 for sensing, and then perform a light receiving function (eg, a proximity sensor). In this case, the control unit 30 further controls the photoelectric conversion units 20 to enter the light-emitting mode to provide the sensing light L2, and the control unit 30 sequentially controls at least one of the photoelectric conversion units 20 to emit light according to the touch signal S2. The mode and the light sensing mode are used to obtain the sensing signal S1 by using the light L2 for sensing.

圖5A至圖5C顯示像素的三種例子。如圖5A所示，此些光電轉換單元20至少包含多個像素24，各像素24包含至少一紅光光電二極體21、至少一綠光光電二極體22及至少一藍光光電二極體23，三者可以稱為RGB光電二極體，對應至一顯示像素(或稱為是顯示像素的一部分)。如圖5B所示，單一像素24可以包含至少一紅光光電二極體21、至少一綠光光電二極體22及兩個藍光光電二極體23。如圖5C所示，單一像素24可以包含兩個紅光光電二極體21、兩個綠光光電二極體22及一藍光光電二極體23。因為光電二極體的配置方式有很多種，於此僅是舉例說明，並未將本揭露內容限制於此，又如圖4A與圖4B中作為發光或光感測用的像素24，更可以選擇是圖5A至圖5C中至少一光電二極體(R或G或B)執行之，也就是在一局部啟動模式下，控制單元30只有啟動R、G及B光電二極體的其中一個或兩個(而不必然啟動全部的R、G、B光電二極體)，以進入光感測模式或發光模式(譬如只有發綠光及感測)，這些都可以配合應用獨立控制到子像素(R/G/B光電二極體21至23可以稱為子像素)。5A to 5C show three examples of pixels. As shown in FIG. 5A , these photoelectric conversion units 20 at least include a plurality of pixels 24 , and each pixel 24 includes at least one red photodiode 21 , at least one green photodiode 22 and at least one blue photodiode 23. The three can be called RGB photodiodes, which correspond to a display pixel (or are said to be part of a display pixel). As shown in FIG. 5B , a single pixel 24 may include at least one red photodiode 21 , at least one green photodiode 22 and two blue photodiodes 23 . As shown in FIG. 5C , a single pixel 24 may include two red photodiodes 21 , two green photodiodes 22 and one blue photodiode 23 . Because there are many ways to configure the photodiode, this is only an example, and the disclosure is not limited to this. Also, as shown in FIG. 4A and FIG. 4B as the pixel 24 for light emission or light sensing, it can be The selection is performed by at least one photodiode (R or G or B) in FIGS. 5A to 5C , that is, in a partial activation mode, the control unit 30 only activates one of the R, G and B photodiodes or two (without necessarily activating all R, G, B photodiodes) to enter light sensing mode or light emitting mode (such as only green light and sensing), which can be independently controlled to the sub- Pixels (R/G/B photodiodes 21 to 23 may be referred to as sub-pixels).

圖6顯示雙模顯示裝置在執行光譜分離功能的局部剖面示意圖。如圖6所示，因為有RGB二極體，所以可以執行光譜分離的功能。因此，於各像素24中，紅光光電二極體21、綠光光電二極體22及藍光光電二極體23進入光感測模式以提供不同的能階來執行光譜分離感測。譬如，光感測模式下的紅光光電二極體21的能階比較窄，綠光光電二極體22的能階次之，藍光光電二極體23的能階比較寬。因為紅光R的能量低，綠光G的能量次之，而藍光B的能量較高，所以藍光B能激發紅光光電二極體21、綠光光電二極體22及藍光光電二極體23進行光電轉換；綠光G僅能激發紅光光電二極體21及綠光光電二極體22進行光電轉換，而無法激發藍光光電二極體23進行光電轉換；而紅光R僅能激發紅光光電二極體21進行光電轉換，而無法激發綠光光電二極體22及藍光光電二極體23進行光電轉換。因此，紅光光電二極體21感測紅光、綠光、藍光及其混合光而進入光感測模式，綠光光電二極體22僅能感測綠光、藍光及其混合光而進入光感測模式，而藍光光電二極體23僅能感測藍光而進入光感測模式，當然上述不同能階的光電二極體是由材料特性決定，甚至發光與光感測的能階也不盡相同，以上所述僅用以說明本揭露內容實施例的一種對光譜分離的優點，並不是要限定每一子像素(光電二極體21至23)所能感測的特定光譜範圍。FIG. 6 shows a partial cross-sectional schematic diagram of a dual-mode display device performing a spectral separation function. As shown in Figure 6, because there are RGB diodes, the function of spectral separation can be performed. Therefore, in each pixel 24, the red photodiode 21, the green photodiode 22, and the blue photodiode 23 enter the light sensing mode to provide different energy levels to perform spectrally separated sensing. For example, in the light sensing mode, the energy level of the red photodiode 21 is relatively narrow, the energy level of the green photodiode 22 is second, and the energy level of the blue photodiode 23 is relatively wide. Because the energy of the red light R is low, the energy of the green light G is second, and the energy of the blue light B is higher, the blue light B can excite the red light photodiode 21 , the green light photodiode 22 and the blue light photodiode 23 for photoelectric conversion; green light G can only excite red photodiode 21 and green photodiode 22 for photoelectric conversion, but cannot excite blue photodiode 23 for photoelectric conversion; and red light R can only excite The red photodiode 21 performs photoelectric conversion, but the green photodiode 22 and the blue photodiode 23 cannot be excited for photoelectric conversion. Therefore, the red light photodiode 21 can sense red light, green light, blue light and their mixed light to enter the light sensing mode, while the green light photodiode 22 can only sense green light, blue light and their mixed light to enter the light sensing mode. In the light sensing mode, the blue photodiode 23 can only sense blue light and enter the light sensing mode. Of course, the above photodiodes with different energy levels are determined by the material characteristics, and even the energy levels of light emission and light sensing are also different. Not the same, the above description is only used to illustrate an advantage of spectral separation of the embodiments of the present disclosure, and is not intended to limit a specific spectral range that each sub-pixel (photodiode 21 to 23 ) can sense.

因此，於上述例子中，多個光電轉換單元20至少具有一第一能階(譬如是對應紅光的能階，但不限於此)與一第二能階(譬如是對應綠光的能階，但不限於此)，第二能階高於第一能階，控制單元30控制具有第一能階的此些光電轉換單元20接收對應的第一光譜而產生第一電信號，且控制單元30控制具有第二能階的此些光電轉換單元20接收對應的第二光譜而產生第二電信號，藉由執行第一及第二電信號的運算可以達到光譜分離的功能。第一光譜與第二光譜的分佈範圍可以是局部重疊或完全不重疊。此外，此些光電轉換單元20可以更具有一第三能階(譬如是對應藍光的能階，但不限於此)，第三能階高於第二能階。控制單元30控制具有第三能階的此些光電轉換單元20接收對應的第三光譜而產生第三電信號，藉由執行第一、第二電信號及/或第三電信號的運算可以達到光譜分離的功能。值得注意的是，上述的運算可以由控制單元30、外部的計算機、或雲端伺服器來執行，且第一、第二與第三光譜的分佈範圍可以是局部重疊或完全不重疊。Therefore, in the above example, the plurality of photoelectric conversion units 20 at least have a first energy level (for example, an energy level corresponding to red light, but not limited thereto) and a second energy level (for example, an energy level corresponding to green light) , but not limited to this), the second energy level is higher than the first energy level, the control unit 30 controls the photoelectric conversion units 20 with the first energy level to receive the corresponding first spectrum to generate the first electrical signal, and the control unit 30 controls the photoelectric conversion units 20 with the second energy level to receive the corresponding second spectrum to generate a second electrical signal, and the function of spectral separation can be achieved by performing operations on the first and second electrical signals. The distribution ranges of the first spectrum and the second spectrum may partially overlap or not overlap at all. In addition, the photoelectric conversion units 20 may further have a third energy level (eg, an energy level corresponding to blue light, but not limited thereto), and the third energy level is higher than the second energy level. The control unit 30 controls the photoelectric conversion units 20 with the third energy level to receive the corresponding third spectrum to generate a third electrical signal, which can be achieved by performing operations on the first, second and/or third electrical signals Spectral separation function. It should be noted that the above-mentioned operations can be performed by the control unit 30, an external computer, or a cloud server, and the distribution ranges of the first, second and third spectrums may partially overlap or not overlap at all.

因為可以利用光電二極體的特性來執行光譜分離，所以依據分離的光譜，使得雙模顯示裝置100可以提供感測的光譜資訊，例如可以應用如指紋防偽所需要的數據，譬如是不同光譜的感測數據的時間域或空間域的變化，或者是不同光譜的感測數據的數學運算關係等等，而不需要設置任何的彩色濾光器，具有降低成本，簡化結構的優點。Because the characteristics of the photodiode can be used to perform spectral separation, according to the separated spectra, the dual-mode display device 100 can provide sensed spectral information, for example, data required for fingerprint anti-counterfeiting can be applied, such as different spectra. The change of the time domain or the space domain of the sensing data, or the mathematical operation relationship of the sensing data of different spectra, etc., do not need to set any color filter, which has the advantages of reducing the cost and simplifying the structure.

圖7A與圖7B顯示圖1的雙模顯示裝置的變化例在執行顯示功能及光感測功能的局部剖面示意圖。如圖7A與7B，提供的是一種類似於圖1的局部感測的例子。如圖7A所示，在顯示模式下，光電轉換單元20提供顯示用光線L1。如圖7B所示，於感測模式下，控制單元30可以同時控制部分的光電轉換單元20(譬如僅以示意的方式表示的左右側的光電二極體)進入發光模式而提供感測用光線L2以及部分的光電轉換單元20(譬如僅以示意的方式表示的中間三個光電二極體21、22與23)進入光感測模式，以利用感測用光線L2來獲得感測信號S1，譬如感測用光線L2打到物體F後再由物體F反射或折射出來而變成光線L3，但是並未將光線L3的產生方式限制於此，因為也可以利用其他光線打到物體F後再由物體F反射或折射出來而變成光線L3；或者，控制單元30可以依據觸控信號S2依序(不同時)控制此些光電轉換單元20進入發光模式及控制此些光電轉換單元20進入光感測模式，以利用感測用光線L2來獲得感測信號S1。藉此，在感測模式下，可以達到局部發光與局部光感測的效果。FIGS. 7A and 7B are partial cross-sectional schematic diagrams showing a modification of the dual-mode display device of FIG. 1 performing a display function and a light sensing function. Figures 7A and 7B provide an example of local sensing similar to that of Figure 1 . As shown in FIG. 7A , in the display mode, the photoelectric conversion unit 20 provides light L1 for display. As shown in FIG. 7B , in the sensing mode, the control unit 30 can simultaneously control some of the photoelectric conversion units 20 (eg, the photodiodes on the left and right sides only shown schematically) to enter the light-emitting mode to provide light for sensing L2 and part of the photoelectric conversion unit 20 (for example, the middle three photodiodes 21, 22 and 23 only shown schematically) enter the light sensing mode to obtain the sensing signal S1 by using the sensing light L2, For example, the sensing light L2 hits the object F and then is reflected or refracted by the object F to become the light L3, but the generation of the light L3 is not limited to this, because other light rays can also be used to hit the object F and then be converted by the light L3. The object F is reflected or refracted to become light L3; alternatively, the control unit 30 may sequentially (not simultaneously) control the photoelectric conversion units 20 to enter the light-emitting mode and control the photoelectric conversion units 20 to enter the light sensing according to the touch signal S2 mode, so as to obtain the sensing signal S1 by using the light L2 for sensing. In this way, in the sensing mode, the effects of partial light emission and partial light sensing can be achieved.

如圖8所示，值得注意的是，當可以進入發光模式及光感測模式的多個光電轉換單元20佈滿整個雙模顯示裝置100時，可以提供一種全屏顯示及全屏感測的應用，此時的感測區SA3可以選擇性地提供感測的功能及顯示的功能。當可以進入發光模式及光感測模式的多個光電轉換單元20只有填滿雙模顯示裝置100的一部分(譬如感測區SA1或SA2以內)時，可以提供一種局部屏感測的應用，而雙模顯示裝置100的另一部分(譬如感測區SA1或SA2以外)，可提供僅具有發光模式的光電轉換單元即可。因此，本案的所請求的範圍包含上述兩種應用。實際製造時，也可以將多個光電轉換單元20佈滿整個雙模顯示裝置100，將安裝有雙模顯示裝置100的電子裝置200分成兩個或多個級別的產品來販售。藉由控制單元30的不同韌體，可以驅動譬如20%、50%及100%的光電轉換單元20可以進入光感測模式，可以造就三種不同大小的感測區SA1、SA2與SA3的三種價格的電子裝置。當然，原先買20%的感測區SA1的使用者，可以自行通過付費的帳戶升級來更新韌體或控制碼，以提升至40%的感測區SA2或100%的感測區SA3，獲得不同的體驗。當然，原先購買100%的感測區SA3的使用者，也可以自行設定其所慣用的感測區，而縮小至任何佔比及/或特定位置的特定感測區，以符合使用者的需求。於此情況下，上述感測模式包含多個子感測模式，而控制單元30可以依據此些子感測模式控制不同佔比的此些光電轉換單元20進入光感測模式。因此，本例子具有一種感興趣的區域可配置化(ROI configurable)的架構，讓使用者自行配置感興趣的區域來進入光感測模式。As shown in FIG. 8 , it is worth noting that when a plurality of photoelectric conversion units 20 that can enter the light-emitting mode and the light-sensing mode are spread across the entire dual-mode display device 100 , an application of full-screen display and full-screen sensing can be provided. At this time, the sensing area SA3 can selectively provide a sensing function and a display function. When the plurality of photoelectric conversion units 20 that can enter the light-emitting mode and the light-sensing mode only fill a part of the dual-mode display device 100 (eg, within the sensing area SA1 or SA2 ), a local screen sensing application can be provided, and Another part of the dual-mode display device 100 (for example, outside the sensing area SA1 or SA2 ) may provide a photoelectric conversion unit with only a light-emitting mode. Therefore, the claimed scope of this case includes the above two applications. In actual manufacturing, a plurality of photoelectric conversion units 20 may be distributed throughout the entire dual-mode display device 100 , and the electronic device 200 mounted with the dual-mode display device 100 may be divided into two or more grades of products for sale. Through different firmware of the control unit 30, for example, 20%, 50% and 100% of the photoelectric conversion unit 20 can be driven to enter the light sensing mode, which can create three different sizes of sensing areas SA1, SA2 and SA3. of electronic devices. Of course, users who originally bought 20% of the sensing area SA1 can update the firmware or control code through a paid account upgrade to upgrade to 40% of the sensing area SA2 or 100% of the sensing area SA3. different experience. Of course, users who originally purchased 100% sensing area SA3 can also set their usual sensing area and narrow it down to a specific sensing area of any proportion and/or specific location to meet the needs of users . In this case, the above-mentioned sensing mode includes a plurality of sub-sensing modes, and the control unit 30 can control different proportions of the photoelectric conversion units 20 to enter the light-sensing mode according to the sub-sensing modes. Therefore, this example has a ROI configurable structure, allowing the user to configure the region of interest to enter the light sensing mode.

藉由上述的實施例，可以利用發光模式及感測模式的光電轉換單元來進行顯示及光感測，其中發光模式的光電轉換單元除了可提供顯示用光線以外，也可以提供感測用光線。由於不需要重新設計製造顯示器，僅需更改電路驅動方式，所以不需要耗費大量的成本，即可達成屏內光學感測器應有的功能。再者，利用RGB二極體的特性，可以執行光譜分離，提供例如指紋應用防偽用的感測數據，而不需另外設置彩色濾光元件，可以有效節省成本。With the above embodiments, the photoelectric conversion units in the light-emitting mode and the sensing mode can be used for display and light sensing, wherein the photoelectric conversion units in the light-emitting mode can not only provide light for display, but also light for sensing. Since the display does not need to be redesigned and manufactured, and only the circuit driving method needs to be changed, the function of the in-screen optical sensor can be achieved without spending a lot of cost. Furthermore, by utilizing the characteristics of the RGB diodes, spectral separation can be performed to provide sensing data for anti-counterfeiting applications such as fingerprint applications, without the need for additional color filter elements, which can effectively save costs.

在較佳實施例的詳細說明中所提出的具體實施例僅用以方便說明本發明的技術內容，而非將本發明狹義地限制於上述實施例，在不超出本發明的精神及申請專利範圍的情況下，所做的種種變化實施，皆屬於本發明的範圍。The specific embodiments proposed in the detailed description of the preferred embodiments are only used to facilitate the description of the technical content of the present invention, rather than limiting the present invention to the above-mentioned embodiments in a narrow sense, without exceeding the spirit of the present invention and the scope of the patent application Under the circumstance, all kinds of changes and implementations made belong to the scope of the present invention.

B:藍光 EM:發光單元 F:物體 G:綠光 L1:顯示用光線 L2:感測用光線 L3:光線 R:紅光 RC:收光單元 S1:感測信號 S2:觸控信號 SA1, SA2, SA3:感測區 10:基板 12:電晶體層 20:光電轉換單元 21:紅光光電二極體 22:綠光光電二極體 23:藍光光電二極體 24:像素 25:電晶體層 25A, 25B, 25C:電晶體 30:控制單元 40:顯示面板保護層 50:觸控感測層 100:雙模顯示裝置 200:電子裝置B: Blu-ray EM: light unit F: object G: green light L1: light for display L2: Light for sensing L3: Light R: red light RC: Receiver unit S1: Sensing signal S2: touch signal SA1, SA2, SA3: Sensing area 10: Substrate 12: Transistor layer 20: Photoelectric conversion unit 21: red photodiode 22: Green photodiode 23: Blue photodiode 24: Pixels 25: Transistor layer 25A, 25B, 25C: Transistor 30: Control unit 40: Display panel protective layer 50: touch sensing layer 100: Dual mode display device 200: Electronics

［圖1］顯示依據本發明較佳實施例的雙模顯示裝置在執行顯示功能的局部剖面示意圖。［圖2］顯示雙模顯示裝置在執行光感測功能的局部剖面示意圖。［圖3］顯示雙模顯示裝置的功能方塊圖。［圖4A］與［圖4B］顯示像素的兩種狀態。［圖5A］至［圖5C］顯示像素的三種例子。［圖6］顯示雙模顯示裝置在執行光譜分離功能的局部剖面示意圖。［圖7A］與［圖7B］顯示［圖1］的雙模顯示裝置的變化例在執行顯示功能及光感測功能的局部剖面示意圖。［圖8］顯示裝設有雙模顯示裝置的電子裝置的不同感測區的示意圖。1 is a partial cross-sectional schematic diagram showing a dual-mode display device performing a display function according to a preferred embodiment of the present invention. [FIG. 2] A partial cross-sectional schematic diagram showing a dual-mode display device performing a light sensing function. [FIG. 3] A functional block diagram showing a dual-mode display device. [FIG. 4A] and [FIG. 4B] show two states of the pixel. [ FIG. 5A ] to [ FIG. 5C ] show three examples of pixels. [FIG. 6] A partial cross-sectional schematic diagram showing a dual-mode display device performing a spectral separation function. [ FIG. 7A ] and [ FIG. 7B ] are partial cross-sectional schematic diagrams showing a modified example of the dual-mode display device of [ FIG. 1 ] performing the display function and the light sensing function. [ FIG. 8 ] A schematic diagram showing different sensing regions of an electronic device equipped with a dual-mode display device.

B:藍光B: Blu-ray

F:物體F: object

G:綠光G: green light

R:紅光R: red light

10:基板10: Substrate

20:光電轉換單元20: Photoelectric conversion unit

21:紅光光電二極體21: red photodiode

22:綠光光電二極體22: Green photodiode

23:藍光光電二極體23: Blue photodiode

24:像素24: Pixels

25:電晶體層25: Transistor layer

25A,25B,25C:電晶體25A, 25B, 25C: Transistor

40:顯示面板保護層40: Display panel protective layer

50:觸控感測層50: touch sensing layer

100:雙模顯示裝置100: Dual mode display device

Claims

一種雙模顯示裝置，至少包含：一基板；一控制單元；以及多個光電轉換單元，設置於該基板上，並電耦合至該控制單元，其中：在一顯示模式下，該控制單元控制該多個光電轉換單元進入一發光模式；以及在一感測模式下，該控制單元控制該多個光電轉換單元的至少一個進入一光感測模式。A dual-mode display device, comprising at least: a substrate; a control unit; and A plurality of photoelectric conversion units are arranged on the substrate and are electrically coupled to the control unit, wherein: In a display mode, the control unit controls the plurality of photoelectric conversion units to enter a light-emitting mode; and In a sensing mode, the control unit controls at least one of the plurality of photoelectric conversion units to enter a light sensing mode.

如請求項1所述的雙模顯示裝置，其中該些光電轉換單元至少包含多個像素，各該像素包含：至少一紅光光電二極體、至少一綠光光電二極體及至少一藍光光電二極體，組成一個三原色光電二極體。The dual-mode display device of claim 1, wherein the photoelectric conversion units include at least a plurality of pixels, and each of the pixels includes: At least one red photodiode, at least one green photodiode, and at least one blue photodiode form a three-primary photodiode.

如請求項2所述的雙模顯示裝置，其中在一局部啟動模式下，該控制單元只有啟動該紅光光電二極體、該綠光光電二極體及該藍光光電二極體的一個或兩個，以進入該光感測模式或該發光模式。The dual-mode display device according to claim 2, wherein in a partial activation mode, the control unit only activates one of the red photodiode, the green photodiode and the blue photodiode or two to enter the light-sensing mode or the light-emitting mode.

如請求項2或3所述的雙模顯示裝置，其中各該像素更包含：至少一電晶體，其中該控制單元通過當作開關用的該至少一電晶體而電耦合至該紅光光電二極體、該綠光光電二極體及該藍光光電二極體。The dual-mode display device as claimed in claim 2 or 3, wherein each of the pixels further comprises: At least one transistor, wherein the control unit is electrically coupled to the red photodiode, the green photodiode, and the blue photodiode through the at least one transistor serving as a switch.

如請求項4所述的雙模顯示裝置，其中於各該像素中，該紅光光電二極體、該綠光光電二極體及該藍光光電二極體進入該光感測模式以提供不同的能階來執行光譜分離感測。The dual-mode display device of claim 4, wherein in each of the pixels, the red photodiode, the green photodiode, and the blue photodiode enter the light sensing mode to provide different energy levels to perform spectrally separated sensing.

如請求項1所述的雙模顯示裝置，其中該些光電轉換單元至少包含一電晶體層，形成於該基板上，其中該電晶體層包含該至少一電晶體。The dual-mode display device of claim 1, wherein the photoelectric conversion units at least include a transistor layer formed on the substrate, wherein the transistor layer includes the at least one transistor.

如請求項1所述的雙模顯示裝置，更包含：一觸控感測層，電耦合至該控制單元，並感測一物體的觸控信息而產生一觸控信號。The dual-mode display device according to claim 1, further comprising: A touch sensing layer is electrically coupled to the control unit, and senses touch information of an object to generate a touch signal.

如請求項7所述的雙模顯示裝置，其中該控制單元依據該觸控信號對應觸控的位置選擇一個感興趣的區域，控制位於該感興趣的區域內的該至少一個光電轉換單元進入該光感測模式，以接收來自該物體的光線，並執行光信號至電信號轉換以獲得一感測信號。The dual-mode display device according to claim 7, wherein the control unit selects an area of interest according to the touch position corresponding to the touch signal, and controls the at least one photoelectric conversion unit located in the area of interest to enter the area of interest The light sensing mode is used to receive the light from the object, and perform the conversion of the light signal to the electrical signal to obtain a sensing signal.

如請求項7所述的雙模顯示裝置，其中該控制單元更於控制該些光電轉換單元的一第一群組進入該發光模式而提供感測用光線，並且控制該些光電轉換單元的一第二群組進入該光感測模式，以利用該感測用光線來獲得一感測信號。The dual-mode display device of claim 7, wherein the control unit further controls a first group of the photoelectric conversion units to enter the light-emitting mode to provide light for sensing, and controls a first group of the photoelectric conversion units The second group enters the light sensing mode to obtain a sensing signal by using the light for sensing.

如請求項9所述的雙模顯示裝置，其中該些光電轉換單元的該第一群組及該第二群組交錯排列。The dual-mode display device of claim 9, wherein the first group and the second group of the photoelectric conversion units are staggered.

如請求項9所述的雙模顯示裝置，其中該控制單元依據該觸控信號依序控制該至少一個光電轉換單元進入該發光模式及該光感測模式，以提供感測用光線並利用該感測用光線來獲得該感測信號。The dual-mode display device of claim 9, wherein the control unit sequentially controls the at least one photoelectric conversion unit to enter the light-emitting mode and the light-sensing mode according to the touch signal, so as to provide light for sensing and utilize the light for sensing The sensing signal is obtained by sensing light.

如請求項1所述的雙模顯示裝置，其中該基板為玻璃基板或高分子柔性基板。The dual-mode display device according to claim 1, wherein the substrate is a glass substrate or a polymer flexible substrate.

如請求項1所述的雙模顯示裝置，為一種微型發光二極體顯示器或一種利用發光二極體當作顯示光源的顯示器。The dual-mode display device according to claim 1 is a miniature light-emitting diode display or a display using light-emitting diodes as a display light source.

如請求項1所述的雙模顯示裝置，其中該控制單元控制該些光電轉換單元的一第一群組及一第二群組分別進入該發光模式及該光感測模式，然後控制該些光電轉換單元的該第一群組及該第二群組分別進入該光感測模式及該發光模式。The dual-mode display device of claim 1, wherein the control unit controls a first group and a second group of the photoelectric conversion units to enter the light-emitting mode and the light-sensing mode, respectively, and then controls the photoelectric conversion units The first group and the second group of photoelectric conversion units enter the light sensing mode and the light emitting mode, respectively.

如請求項1所述的雙模顯示裝置，其中利用該些光電轉換單元在不同時間點進行電光及光電轉換來執行部分發光及部分光感測，而獲得顯示、照明及光感測的功能。The dual-mode display device as claimed in claim 1, wherein the photoelectric conversion units perform electro-optic and photo-electric conversion at different time points to perform partial light emission and partial light sensing to obtain the functions of display, illumination and light sensing.

如請求項1所述的雙模顯示裝置，其中利用不同位置的該些光電轉換單元進行電光及光電轉換來執行部分發光及部分光感測，而獲得顯示、照明及光感測的功能。The dual-mode display device according to claim 1, wherein the photoelectric conversion units at different positions are used to perform electro-optic and photo-electric conversion to perform partial light emission and partial light sensing to obtain the functions of display, illumination and light sensing.

如請求項4所述的雙模顯示裝置，其中該控制單元控制並調整該些光電轉換單元的三原色光電二極體的三原色的發光比例，另外在感測時控制具有不同的三原色能階的該些三原色光電二極體接收不同光譜的光，以執行光譜分離的功能。The dual-mode display device according to claim 4, wherein the control unit controls and adjusts the luminous ratios of the three primary colors of the three primary color photodiodes of the photoelectric conversion units, and also controls the three primary colors of the photoelectric conversion units with different energy levels of the three primary colors during sensing. These three primary color photodiodes receive light of different spectra to perform the function of spectral separation.

如請求項17所述的雙模顯示裝置，其中該控制單元依據應用場景控制該些三原色光電二極體的發光與感測比例。The dual-mode display device according to claim 17, wherein the control unit controls the light-emitting and sensing ratios of the three-primary-color photodiodes according to application scenarios.

如請求項1所述的雙模顯示裝置，其中該感測模式包含多個子感測模式，該控制單元依據該多個子感測模式控制不同佔比的該多個光電轉換單元進入該光感測模式。The dual-mode display device as claimed in claim 1, wherein the sensing mode includes a plurality of sub-sensing modes, and the control unit controls a plurality of photoelectric conversion units with different proportions to enter the photo-sensing according to the plurality of sub-sensing modes model.

如請求項1所述的雙模顯示裝置，具有一種感興趣的區域可配置化的架構，讓一使用者自行配置一感興趣的區域來進入該光感測模式。The dual-mode display device as claimed in claim 1 has an area-of-interest configurable architecture, allowing a user to configure an area of interest to enter the light sensing mode.

一種雙模顯示裝置，至少包含：一基板；一控制單元；以及多個光電轉換單元，設置於該基板上，並電耦合至該控制單元，其中該多個光電轉換單元至少具有一第一能階與一第二能階，該第二能階高於該第一能階，其中該控制單元控制具有該第一能階的該些光電轉換單元接收對應的第一光譜而產生一第一電信號，該控制單元控制具有該第二能階的該些光電轉換單元接收對應的第二光譜而產生一第二電信號，藉由執行該第一電信號及該第二電信號的運算以達到光譜分離的功能。A dual-mode display device, comprising at least: a substrate; a control unit; and a plurality of photoelectric conversion units disposed on the substrate and electrically coupled to the control unit, wherein the plurality of photoelectric conversion units at least have a first energy level and a second energy level, and the second energy level is higher than the first energy level an energy level, wherein the control unit controls the photoelectric conversion units with the first energy level to receive a corresponding first spectrum to generate a first electrical signal, and the control unit controls the photoelectric conversion units with the second energy level The unit receives the corresponding second spectrum to generate a second electrical signal, and performs the operation of the first electrical signal and the second electrical signal to achieve the function of spectral separation.

如請求項21所述的雙模顯示裝置，其中該多個光電轉換單元更具有一第三能階，其中該第三能階高於該第二能階，其中該控制單元控制具有該第三能階的該些光電轉換單元接收對應的第三光譜而產生一第三電信號，藉由執行該第一電信號、該第二電信號及/或該第三電信號的運算以達到光譜分離的功能。The dual-mode display device of claim 21, wherein the plurality of photoelectric conversion units further has a third energy level, wherein the third energy level is higher than the second energy level, wherein the control unit controls the third energy level The photoelectric conversion units of the energy level receive the corresponding third spectrum to generate a third electrical signal, and achieve spectral separation by performing operations on the first electrical signal, the second electrical signal and/or the third electrical signal function.